Lock



June 17, 1930. v, SZYMANSK. 1,764,367

LOCK

Filed Feb, 18, 1928 Mmmm.

Patented June 17, 1930 VINCENT SZYMANSKI, OF DETROIT, MICHIGAN Loox Application filed February 18, 1928. Serial No. 255,296.

'My invention relates to a new and useful improvement in a lock adapted for mounting on various articles and performing the function ordinarily performed by padlocks and the like.

It is an object of the present invention to provide a lock which will be simple in structure, economical of manufacture and highly efficient in use. v

Another object of the invention is the provision of a lock in which a pair of swingably mounted locking members are normally held in locking position and moved to inoperative position by means of a suitable key.

1.5 Another object of the invention is theprovision of a lock having a head mounted on a stem so arranged and constructed that undue manipulation of the lock to releasing position is rendered practically impossible.

Other objects will appear hereinafter.

The invention consists in the combination and arrangement of parts hereinafter describedand claimed.

r The invention will be best understood by a 2" reference to the accompanying drawings which form a part of this specification and in which, Y

Fig. 1 is a perspective view of the invention in separated form.

Fig. 2 is an end elevational view of the head used in the invention.

Fig. 3 is a sectional view 3-3 of Fig. 2.

Fig. 4 is a sectional view taken on line 35 4 4 of Fig. e.

Fig. 5 is a sectional view similar to Fig. 4 in unlocked position.

Fig. 6 is a central sectional head showing it in locking position on the stem taken on line 6-6 of Fig. 4.

Fig. 7 is a side elevational view of the key used in the invention.

Fig. 8 is a fragmentary perspective view of a disc wheel showing the invention applied.

In Fig. 1 I have illustrated the invention adapted for securing a movable supporting body such as a door 9 in fixed relation to a iXed supporting mounted the swingably mounted hasp 11 having an opening 12 formed therein.

taken on line view of the `head 16 is proj ected through the central openbody 10 upon which is The invention comprises two parts, which are shown in Fig. 1 in separated relation. @ne of these parts comprises the stem 13 having the base 14 which may be attached to a suitable supporting object. The stem 13 55 is provided, adjacent its end, with a periphy eral groove 15 to provide, at the end thereof, a head 16. The other portion of the lock comprises a housing which is formed cupshaped, the walls thereof being cut away as at 17 to provide a space for the tongue 18 of thercover 19 which is mounted thereon to provide a closure therefor. Projecting outwardly from the cover 19, opposite the tongue 18, are pins 20 which engage in openings formed in the wall of the cup-shaped housing. There is formed on the inner surface of the base 21 of this cup-shaped member a recess 22. As shown in Fig. 2, the cover 19 is secured on thev cup-shaped member by means of al screw 23 7 0 which is threaded into an opening-24 formed in the inner surface of the base 21 of this cupshaped member.

Projecting inwardly from the cover 19, centrally thereof, so as to engage in lthe 5 recess 22, is a cylindrical neck 25, in which slots 26 are vformed at diametrically opposite points. Formed in the base 21 is a key hole 27, positioned opposite to which is a recess or socket 28 formed in the cover 19. yProjecting upwardly from the cover 19, adjacent the recess or socket 28, is an arcuate guide 29.

The locking members comprise arcuate plates 30 and 31 connected to the ends 32 and 33 respectively of the spring -which is coiled 95 about the screw 23. A tongue 34 extends from the locking Afinger 31 partially around the recess or socket 28. As shown in Fig. 5 these locking members are adapted toproject inwardly'through the slots 26 so as to engage in the groove 15 which is formed in the stern 13. The spring arms 32 and 33 serveV normally to retain the locking membersprojected through these slots 26so that when the ing formedin the cover 19 which'is in registration with the neck 25, the locking members 31 and-30 will be forced backwardly to inoperative position against the tension of the spring arms 32 and 33 so that when the groove l5 is brought into registration with these locking members they Will snap into locking position, as shown in F ig. 6.

In order to move these locking members to inoperative position a key having a stem 37 and provided with laterally projecting prongs 38 and 39 .is inserted through t-he key hole 27, the end of the stem 37 engaging iii the recess or socket 28. These prongs 38 and 39 are laterally turned at their ends as shown in Fig. 7, and the guide 29 is arranged in accordance With the nature of the prongs 38 and 39, the position of the guide 29, as Well as the shape and size of the prongs 38 and 39, determining tlie nature of the key necessary for op- -erating the device. IVlien the key is inserted into position and rotated, the laterally turned prongs 38 and 39 will engage the locking members, and force them outwardly into the position shown in Fig. 5, upon which the head may be removed from the stem. A shield 40 is mounted on the head to serve as a cover for the key hole 27.

lith a lock constructed in this manner there is provided a device Which is economical to manufacture, and one Which may be easily and quickly assembled, consisting, as it does, of a minimum number of parts.

In Fig. 8 I have illustrated the luse of the invention on an automobile Wheel of the disc type comprising a main body 41 which is attached by suitable bolts 42 to a hub 43. One of these bolts is dispensed with and an elongated steln 44 is provided with a head 16 to cooperate with the locking mechanism in the housing 45, thus affording means for locking the Wheel on the hub, Without, to any great extent, altering the appearance of the Wheel and t-he fastening mechanism.

With disc Wheels the tire 46 is usually ietained in place by a split ring 47 and this ring may be removed and the tire taken from its supporting rim Without disturbing the mounting of the Wheel 41 on the hub 43.

The invention lends itself as a protection against undue removal of the tire 46, and to this end I have provided arcuate overlapping tongues 48 and 49 which are Welded or other- Wise suitably secured on the ring 47, and provided with holes which register and through which a stem 50 may be projected, this stem being also projected through the wheel 41 and formed in the nature ot a bolt, so that the locking head already described may be mounted on the stem 50, th'us securely locking the ring 47 in position on the Wheel 41 Various other uses of the invention will suggested themselves as the need for a locking mechanism arises, and it is believed thatthe adaptability of the various uses will readily be suggested.

IVhile I have illustrated and described the preferred form of my invention, I do not Wish to limit myself to the precise details of structhe present invention to ture shown, but desire to avail myself of such variations and modifications as come within the scope of the appended claims.

Having thus described my invention what I claim as new and desire to secure by Letters Patent is 1. A lock of the class describedcomprising: a stem having a peripheral iiange adjacent one end to provide a tapered head on said end; a supporting portion on the opposite side of said stem adapted for attachment to a supporting object; a detachable locking member comprising a cup-shaped housing; a cover for said housing, said cover having an in- `Wardly projecting neck for engaging in a recess formed on the inner face of said cupshaped member, said neck having diametrically opposite openings formed therein; and sWin-gable locking members in said cupsliaped member adapted for projecting through said openings and engaging in the groove in said stem.

2. A lock of the class described, comprising: a stem having a peripheral flange adj acent one end to provide a tapered head on said end; a supporting portion on the opposite side of said stem adapted for attachment to a supporting object; a detachable locking member comprising a cup-shaped housing; a cover for said housing, said cover having an inwardly projecting neck for engaging in a recess formed on the inner face oi said cupshaped member, said neck having diametrically Vopposite openings formed therein;

swingable locking members in said cup-y shaped member adapted for projecting through said openings and engaging in the groove 11i said stein; and resilient means for normally retaining said locking members in engagement in said groove.

In testimony whereof I have signed the foregoing specification.

VINCENT szYMANsKi'. 

